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1198

更新时间： 2022-04-23 23:00:11

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Single Chip Low Cost Low Power RF-Transmitter

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1198 数据手册

CC1150

Frequency Synthesizer Characteristics

Tc = 25°C @ VDD = 3.0 V if nothing else is stated. Measured on Chipconís CC1100EM reference design.

Parameter

Min

Typ

Max

Unit

Condition/Note

Programmed

frequency resolution

397

F_XOSC

412

26MHz-27MHz crystal. The resolution (in Hz) is equal for

all frequency bands.

2¹⁶

Synthesizer frequency

tolerance

±40

ppm

Given by crystal used. Required accuracy (including

temperature and aging) depends on frequency band and

channel bandwidth / spacing.

PLL turn-on / hop time

PLL calibration time

Time from leaving the IDLE state until arriving in the

FSTXON or TX state, when not performing calibration.

Crystal oscillator running.

µs

18739

0.72

XOSC

cycles

Calibration can be initiated manually, or automatically

before entering or after leaving RX/TX.

0.69

0.72

Min/typ/max time is for 27/26/26MHz crystal frequency.

Table 7: Frequency Synthesizer Parameters

Analog temperature sensor

The characteristics of the analog temperature sensor are listed in Table 8 below. Note that it is

necessary to write 0xBF to the PTEST register to use the analog temperature sensor in the IDLE

state.

The values in the table are simulated results and will be updated in later versions of the data sheet. Minimum / maximum

values are valid over entire supply voltage range. Typical values are for 3.0V supply voltage.

Parameter

Min

Typ

Max

Unit

Condition/Note

0.638 0.648 0.706

0.733 0.743 0.793

0.828 0.840 0.891

0.924 0.939 0.992

Output voltage at ñ40°C

Output voltage at 0°C

Output voltage at +40°C

Output voltage at +80°C

Temperature coefficient

2.35

ñ14

2.45

ñ8

2.46

+14

mV/°C Fitted from ñ20°C to +80°C

Absolute error in calculated

temperature

°C

From ñ20°C to +80°C when assuming best fit for

absolute accuracy: 0.763V at 0°C and 2.44mV / °C

Error in calculated

temperature, calibrated

ñ2

°C

From ñ20°C to +80°C when using 2.44mV / °C,

after 1-point calibration at room temperature

Settling time after enabling

TBD

0.3

µs

Current consumption

increase when enabled

Table 8: Analog Temperature Sensor Parameters

Preliminary Data Sheet (rev. 1.0.)

SWRS037

Page 7 of 49

1...4 5 678 9 10...50

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